C PROGRAM TO CONVERT A SINGLE LOWERCASE CHAR INTO UPPERCASE

Write a program to convert a single lowercase character into uppercase character.

#include<stdio.h>

#include<conio.h>

int main()

{

char a, b;

clrscr();

printf("enter a single character in lowercase\n");

a=getchar();

b=toupper(a);

putchar(b);

getch();

return(0);

}

OUTPUT:

Enter a single character in lowercase

h

H

C PROGRAM TO DISPLAY A SINGLE CHARACTER ENTERED BY THE USER ON THE SCREEN

Write a program to display what ever you want:

#include<stdio.h>

#include<conio.h>

int main()

{

char a;

clrscr();

printf("Enter any single character that you want to print on screen\n");

a= getchar();

putchar(a);

getch();

return(0);

}

OUTPUT:

Enter any single character that you want to print on screen

H

H

C PROGRAM AREA OF RECTANGLE

Write a program to find the Area of Rectangle:

#include<stdio.h>

#include<conio.h>

int main()

{

int area, a, b;

clrscr();

printf("Enter the two sides of the reactangle");

scanf("%d%d",&a,&b);

area=a*b;

printf("Area is %d",area)

getch();

return(0);

}

OUTPUT:

Enter the two sides of the reactangle 5 6

Area is 30

C PROGRAM TO CALCULATE SUBTRACTION AND ADDITION(USING FUNCTION)

Write a program to calculate the Subtraction and addition of two numbers by using functions.

#include<stdio.h>

#include<conio.h>

int sum(int, int);

int sub(int, int);

int main()

{

int a, b, c, d;

clrscr();

printf(" Enter the two numbers");

scanf("%d%d",&a,&b);

c=sum(a, b);

d=sub(a, b);

printf("The sum of the number is %d and the difference is %d",c,d);

getch();

return(0);

}

int sum(int x, int y)

{

int z;

z=x+y;

return(z);

}

int sub(int x, int y)

{

int z;

z=x-y;

return(z);

}

OUTPUT:

Enter the two numbers 8 4

The sum of the number is 12 and the difference is 4

C PROGRAM TO FIND SUM OF TWO NUMBERS (USING FUNCTION)

Write a program to find the sum of two numbers using function:

#include<stdio.h>

#include<conio.h>

int sum(int a, int b)

{

int c;

c=a+b;

return(c);

}

int main()

{

int x, y, z;

printf("Enter the two numbers");

scanf("%d %d",&x,&y);

z=sum(x,y);

printf("Sum of %d + %d is %d",x,y,z);

getch();

return(0);

}

Output:

Enter the two numbers

4 4

Sum of 4 + 4 is 8